Using The Advanced Rfid Calibration; Tag Profiler - Printronix SL4M Reference Manual

Using The Advanced RFID Calibration

Tag Profiler

The Tag Profiler maps the tag position with optimized read and
write power settings.
Before running the Tag Profiler, it is important that the proper Gap
Sensing procedure has been followed. (Refer to "Calibrating The
Printer" in the User's Manual .)
To use the Tag Profiler, first ensure that the tag type that you have
selected from the Tag Type menu (see "Tag Type" on page 22
[SL5000r] or page 39 [SL4M] for a list of supported tag types) either
matches the tag type you are about to calibrate or is at least of the
same Class and data length (i.e. 64 or 96 bits). Next, check that
Custom Tag is set to Duplicate. The correct defaults will then be set
for Custom Tag Class and Tag (EPC Byte) Length.
Prior to initiating the calibration cycle, the Tag Profiler can be
optimized by setting appropriate limits on the following four custom
entries:
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•
•
Custom (Scan) Start Pos. Identifies the starting position of the
calibration scan. The default will start at the Top Of Form
(TOF). To avoid inefficient scanning at points far away from the
target tag, set the (Scan) Start Pos within one inch of the center
of the physical tag. E.g., if the center of the tag is physically
three inches from the TOF, set (Scan) Start Pos to 2 inches
(one inch before the center of the tag).
Custom Scan Length. The distance the Tag Profiler will scan
to determine the optimum tag position. For improved
performance, set Custom Scan Length to 2 inches or less. This
will prevent the printer from looking for a tag far beyond its
actual location.
Custom (Cal) Min Power. Sets the lower level that will be
tested during calibration. To speed up calibration, set Custom
Min Power to two points lower than the Custom Read Power
that was set prior to initiating calibration.
Tag Profiler
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